AMC MCQ - Australian Medical Council Multiple Choice Questions Ethics and Professional Practice Questions and Answers
An 82-year-old man with metastatic lung cancer and a valid Advance Care Directive (ACD) is admitted with sepsis from a urinary tract infection. The ACD clearly states he refuses all life-sustaining treatments, including intravenous antibiotics and admission to an intensive care unit. The patient is now delirious and lacks decision-making capacity. His family is adamant that he should receive antibiotics, stating, "He wouldn't want to die from a simple infection." What is the most appropriate and legally defensible course of action for the treating doctor?